U形截面包容环优化设计方法研究  

RESEARCH ON THE OPTIMAL DESIGN METHOD OF U-SHAPED SECTION CONTAINMENT RING

作　　者：章晓东 张亚楠[2] 刘建新 陈利强 宣海军[2] ZHANG XiaoDong;ZHANG YaNan;LIU JianXin;CHEN LiQiang;XUAN HaiJun(Ocean College,Zhejiang University,Zhoushan 316021,China;College of Energy Engineering,Zhejiang University,Hangzhou 310027,China;AECC Hunan Aviation Powerplant Research Institute,Zhuzhou 412002,China;AVIC Jincheng Nanjing Engineering Institute of Aircraft System,Nanjing 211106,China)

机构地区：[1]浙江大学海洋学院,舟山316021 [2]浙江大学能源工程学院,杭州310027 [3]中国航发湖南动力机械研究所,株洲412002 [4]中航工业金城南京机电液压工程研究中心,南京211106

出　　处：《机械强度》2024年第6期1390-1397,共8页Journal of Mechanical Strength

摘　　要：U形结构包容环是涡轮起动机通常采用的保护装置。在满足涡轮转子被包容的条件下,对U形截面包容环进行结构优化以获得一个轻便且包容的结构,有利于提高飞机的安全性和推重比。提出了一种U形截面包容环的优化设计方法,该方法采用最优拉丁超立方设计、数值模拟、响应面建模、多岛遗传算法实现包容环截面多参数的优化设计。并通过仿真和试验相结合的方法,分析了不同结构参数对碎片剩余动能和包容环体积的影响权重,研究了U形包容环的不同结构参数对包容结果的影响,并对优化设计后的包容环进行包容性试验验证。结果表明,包容环厚度参数对碎片剩余动能的影响最大,权重比为38%;且影响包容效果主要结构参数是厚度和槽深。仿真与试验结果对比中包容环变形量的误差小于2%,提出的优化设计方法合理可靠。可为U形包容环结构的质量减轻提供先验知识和优化方法。U-shaped containment ring is usually used as protection device for turbine starters.Under the condition that the turbine rotor is contained,structural optimization of the U-shaped section containment ring was carried out to obtain a light and inclusive structure,which improved aircraft safety and thrust-to-weight ratio.An optimal design method for U-shaped cross section containment ring was proposed.The method adopted the optimal Latin hypercube design,numerical simulation,response surface modeling,and multi-island genetic algorithm to achieve the optimal design of multiple parameters of containment rings cross section.By combining simulation and experiment,the influence weights of different structural parameters on the residual kinetic energy of debris and the volume of containment rings were analyzed.The influence of different structural parameters of Ushaped containment ring on the containment results was studied.Containment test was carried out to verify the optimized containment ring.The results show that the thickness of the containment ring has the greatest influence on the residual kinetic energy of the debris,and the weight ratio is 38%.The main structural parameters affect the inclusion effect are thickness and groove depth.The error of inclusion ring deformation is less than 2%in the comparison between simulation and test results,which indicates that the optimization design method proposed is reasonable and reliable.The research results can provide prior knowledge and optimization methods for the quality reduction of U-shaped containment ring structures.

关 键 词：空气涡轮起动机 U形截面包容环 结构优化设计 DOE样本库 响应面建模 多岛遗传算法 

分 类 号：V214.19[航空宇航科学与技术—航空宇航推进理论与工程]